I think it would work fine in PT and RB, but not well in BIAB.

If you want a decent BIAB solution, check out the IK Multimedia Xpansion Tank 2 group buy. Now 4 for the price of 1 ($49). I jumped on it because I already had a few ExpansionTank sounds and always liked them. My choices for this were Omnisynth 2, Acoustic Drums 2, and Symphony Strings. I haven't decided on title 4...maybe Vintage Keyboards. With more sales they will add title 5. If you buy from Esoundz (I did), you'll get some bonus product at the end of the month.

So far, I like what I've heard. I was surprised that Omnisynth has a program change script that's easy to load and edit (via notepad). It automatically loads up the correct GM instrument based on the BIAB song. You just load up sampletank, click program change, open the GM program change file, and press play on BIAB. It doesn't always work perfectly, for some reason, but it's a lot better than having to load a preset for each song.

Oh yeah, no more Sampletank LE...it gives you the real version now!